89712959269 has 2 divisors, whose sum is σ = 89712959270. Its totient is φ = 89712959268.

The previous prime is 89712959233. The next prime is 89712959291. The reversal of 89712959269 is 96295921798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49622908644 + 40090050625 = 222762^2 + 200225^2 .

It is a cyclic number.

It is not a de Polignac number, because 89712959269 - 2¹³ = 89712951077 is a prime.

It is a super-2 number, since 2×89712959269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89712959969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44856479634 + 44856479635.

It is an arithmetic number, because the mean of its divisors is an integer number (44856479635).

Almost surely, 2^89712959269 is an apocalyptic number.

It is an amenable number.

89712959269 is a deficient number, since it is larger than the sum of its proper divisors (1).

89712959269 is an equidigital number, since it uses as much as digits as its factorization.

89712959269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 67.

The spelling of 89712959269 in words is "eighty-nine billion, seven hundred twelve million, nine hundred fifty-nine thousand, two hundred sixty-nine".